mysql和区分大小写真的令人困惑

Question

Windows操作系统 - phpMyAdmin

select auth, COUNT(*) AS count from posts where auth = 1;

提供信息：

Your SQL query has been executed successfully

但：

select auth, count(*) AS count from posts where auth = 1;

给出以下内容：

Showing rows 0 - 0 (1 total, Query took 0.0070 seconds.

here我发现了一个关于MySql和区分大小写的真实令人困惑的故事。

关于编写查询，有关大写或大写的常见最佳实践，还是我必须为每个操作系统单独学习所有规则？

Answer 1

你试过了吗？

 select auth, count(*) AS count 
 from posts 
 where auth = 1
 group by auth
 ;